Ejector.



P. S. MILLER.

v ma'ron APPLICATION FILHD MAR. 26, 1 908.

Patented May 11, 1909.

2 SHBBT8BHEET 1.

IN VENTOR.

ATTORNEX,

Francis 3. Miller BY /6 WITNESSES: @lv 6W Fig -3- Patented. Ma 11, 1909.,

2 SHEETS-SHEET 2.

WI TN E5ES IN VEN TOR.

0M fi/wlm rimncis fiMiHgr v BY 4 4 /'ATTORNEY. I

UNITED s rAp -sggn rnur orrrerz.

FRANCIS S. MILLER, OF INDIANAPOLIS, INDIANA, ASSIGNOR TO HARRIS AIR PITMP COM- PANY, OF INDIANAPOLIS, INDIANA, A CORPORATION OF INDIANA.

EIEGTOR.

Specification of Letters Patent.

Patented May 11, 1909.

Application fire'amrch 26, 1908. Serial No. 423,480.

To all whom it may concern: I

Be it known thatI, FRANCIS S'll lrLrmi, of Indianapolis, county of Marion, and State of Indiana, have invented a certain new and useful Ejector; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, in which like numerals refer to like parts.

The object of this invention is to improve the construction and operation of 'ejectors in pumps and the like, especially in pum s operated by compressed air, as illustrated y Letters Patent to li Ialter B. Harris, on air lift for fluids; issued April 26, 1904, No. 7 58,360. In such device the fluid is forced upout of the fluid discharge tube, either par- .tially or wholly, by compressed air or the like being applied in or below the column of fluid in the fluid discharge tube by the ejector.

The chief feature of thisinvention consists in providing an ejector insertible downwardly into the fluid discharge tube, instead of forming a section of said fluid discharge tube. The air su ply tube is inserted centrally within the fluid discharge tube and is secured to the lower end of the ejector.

The important feature of this invention consists in the provision of this annular air outlet surrounding the centrally located compressed air supply pipe.

Another feature of the invention consists in forming the ejector of two parts, upper and lower parts, which are screwed together at the air outlet so as to be adjustable with relation to each other for modifying the dimensions of the air outlet. The lower section of said ejectortapers upwardly to the air outlet, while the upper section flares upwardly from'the air outlet. Furthermore, the joint between the two sections is filled with lead that projects beyond the sides of the ejector to afford a packing not only between the sections of the ejector but between the ejector and the casing. This lead being soft, accommodates itself to the inner surface of the fluid discharge tube as the ejector is being lowered into place and its thickness is determined by the adjustment of the air outlet.

The general nature of this invention will be understood from' the accompanying drawings and the following description and claims:

In the drawings, Figure 1 is a central vertical section through a portion of the discharge tube'showing the ejector in elevation, the same being broken away at its upper and lower ends. Fig. 2 is an enlarged view from the side as regards Fig. 1. Fig. 3 is a central vertical section through a portion of the fluid discharge tube and through the ejector. Fig. 4 is a vertical section through the upper part of the ejector at a right angle to that of,

Fig. 3 with the outlet port enlarged by adjusting the parts. Fig. 5 is a horizontal section on the line 55 of Fig. 3. Fig. '6' is a horizontal section on the line 66 of Fig. 3.

In detail the drawings show a fluid discharge tube 10 through which the fluid, such as oil or water, is vertically moved in the process of pumping. It is sunk in the well and the problem is to force the fluid from the well through and out of said fluid discharge tube. A compressed air tube .11 is inserted centrally down into said fluid discharge tube for supplying compressed. air to elevate the fluid, both by suction from below and propulsion of the fluid above. To the lower end of said air tube 11 the ejector is screwed. This ejector consists of a connecting lower portion 12 with diverging conduits 13 in suitable arms that project upwardly and are integral with a cylindrical portion 14 which extends up to the air outlet and there is an upper cylindrical portion 15 secured on the portion 14.

The part 12 is in the nature of a thimble or sleeve which, as stated, is detachably secured to the lower end of the tube 11. The lower end of said thimble 12 is closed by a removable plug 16. Thearms 13 branch laterally in opposite directions from the thimble 12 and are integral therewith. These arms are tubular and the conduits therethrough are in communication withthe air tube 11 so the compressed air will pass down through said tube into the conduits 13 and upwardly through them to the annular chamber 17 and thence through the annular air outlet 18.

The cylindrical portion 14 is integral with the arms 13 and its inner surface tapers upwardly, as shown in Fig. 4, both to contract the passageway for the fluid through said ejector outlet to air outlet 18 and also to be thick enough to contain the annular chamber 17. The inner wall of said annular chamber 17 is a thin lip that cooperates with the beveled surface 20 of the upper portion 15 of the ejector, to form the air outlet when the two portions 14 and 15 are secured together. For this latter purpose the lower portion 14 extends above the chamber 17 and is internally threaded above said chamber to receive the externally threaded downwardly projecting flange 21 from the upper portion 15.

fluid discharge tube.

The union between the parts 14 and 15 of the ejector is adjustable since they are screwed together so as to adapt the dimensions of the air outlet 18 to suit the work required. W hen said parts 14- and 15 are properly adjusted, they are held in place by the screws 22 and also by the lead 'lilling 23 which fllls the gap between said sections 14 and 1.5 and since it is soft it can readily be put in place or removed if required. This lead fllling project-s beyond the surface of the ejector to engage the inner surface ol the It, therel'ore, protects the ejector while it is being lowered into the fluid discharge tube, accommodates itself to the irregularities of the fluid discharge tube and closes the passage way between the fluid discharge tube and the ejector, so that all the fluid will pass through the ejector and make the ejector more eflective.

VJhat I claim as my invention and desire to secure by Letters Patent is:

1. A tubular ejector adapted to be inserted in the fluid discharge tube or a pump so that the fluid must pass up through said ejector, and a tube extending down centrally in said ejector and s cured thereto for supplying the ejector with fluid under pressure, said ejector being provided with an annular outlet for the fluid under pressure in the inner wall of said ejector and surrounding said fluid pressure tube and the fluid passage-way through the ejector.

2. A tubular ejector adapted to be inserted in the fluid discharge tube for a pump so that the fluid must pass up through said ejector, said ejector being formed of an upper cylindrical portion, and a lower cylindrical portion connected with said upper portion so as to form an annular outlet -l'or the fluid under pressure through its inner wall at the juncture of said portions surrounding the fluid passage-way through the ejector, the lower portion ol' said ejector being provided with a conduit in communication with said outlet, and a tube extending down centrally through said ejector and in communication with said conduit for supplying fluid under pressure thereto.

3. An ejector adapted to be inserted in the fluid discharge tube for a pump and consisting of an upper cylindrical portion with an externally threaded lower end, a lower cylindrical portion internally threaded to screw on the upper portion and having an annular chamber in its upper end from which an annular outlet is provided in the inner wall of the ejector, a pair of oppositely located conduits leading from said chamber down through said lower cylindrical portion and through arms extending downward from said cylindrical portion, and a tube extending centrally through said ejector and secured to the lower on d of said arms and in communication with the conduits thercthrough l'or supplying fluid under pressure.

t. An ejector adapted to be inserted in tho fluid discharge tube for a pump and consisting or an upper cylindrical portion with an externally threaded lower end, a lower cylindrical portion internally threaded to screw on the upper portion and having an annular chamber in its upper end llOlll which an annular outlet is provided in the inner wall of the ejector, a pair oi oppositely located conduits leading from said chamber dou n through said lower cylindrical portion and through arms extending do\\'n\\ard from said cylindrical portion, a tu be cxtondii 1 con trall through said ejector and scoured to the lower end of said arms and in coinmuniratnin with the conduits therethrough l'or supplying lluid under pressure, means "for holding said portions 01' the ejector in their adjusted positions, and a packing between the ends of said ejector portions.

In witness whereol' l have hereunto allixcd my signature in the presence ol' the wit nossos herein named.

FRANCIS S. MILLER.

Viitnesses:

OLIVE Bananas, V. H. LooKwoon.

SIU 

